John crabtree



UETTED sTATEs PATENT oEErcE.

JOHN CRABTREE, OF NEW YORK, N. Y.

MODE 0F FORMING BLOCKS' FOR PRINTING COLORS ON SILK, LINEN, COTTON, AND

OTHER CLOTH.

Specification of Letters Patent No. 507, dated December 7, 1837.

T0 all whom it may concern Be it known that I, JOHN CRABTREE, silk,linen, and cotton printers, in the employ of the New York dyeing andprinting establishment, in the city of New York, have invented a new anduseful improvement in the mode 0f forming blocks for printing colors onsilk, linen, cotton, and woolen goods and other fabrics to which suchmode of printing is applicable, which mode of forming said blocks hasnot been known or so used prior to my invention of the same, and forwhich I am seeking a patent of the United States, and that the mode offorming said blocks, as distinguished from the mode hitherto generallypractised of doing the same, is freely set forth and shown in thefollowing description, and in the drawings annexed to and making a partof this specification, as follows:

Figure l, is a linear representation of the mode hitherto practiced, oflaying a set of printing blocks for use, in which the parts marked l,form the sides of the border, and are mitered at the angles; the partsmarked 2, form the middle, so that twelve layings are required for theborder, and nine for the filling, for each color used by this mode, theshrinkage and warping of the mitered pieces, causes the mitered joint toopen, and

.when in use,` this leaves the miter of the printed pattern imperfect,on the goods, and this imperfection is frequently made worse, by theblock, for the second color, shrinking, or warping, in a differentdirection. This injury may be prevented by having a third block,expressly for the angle, but such a Inode will add materially to theexpense of printing.

The Inode I propose to remedy or prevent this injury, is shown in Fig.2, which is a linear representation of the mode, for which I seek apatent, for laying a set of printing blocks for use, in which the anglepieces marked 1, are solid, and contain the angle or corner pattern,with its own parts miteredV inthe solid block, so that when the goodsare printed, the pattern comes off perfect, which cannot be attainedwhen this part of they block is in two pieces. The same blocks containeach a portion of the middle of the pattern, and the pieces marked 2,and .3,

complete the square. By this arrangement, only eight layings, for eachcolor, are required, to complete the printing of the goods, and muchless labor is required, and the work is more neatly executed, than vbythe ordinary mode first described herein.- The drawing represents asquare but the mode is equally applicable to any other form.

What I claim as my invention, and for which I seek a patent, is-

The forming the angle blocks in one piece, so that they shall containthe angle or corner patterns, each having its own parts mitered in thesolid block, in combination with the arrangement herein substantiallydescribed and set forth by which a less number of layings for each colorare required and the workis more neatly executed thanheretofore by themode in eneral use.

In witness w ereof I have hereunto set my hand in New York thiseighteenth day 0f November one thousand eight hundred and thirty-seven.

JOHN ORABTREE.

lVitnesses:

, S. M. W. BROOKS,

W. SERRELL.

